Portable testing device and testing system

Abstract

The utility model discloses a portable testing device and a testing system, the testing device is used for testing a flexible direct current energy storage valve submodule, the testing device comprises a direct current power supply output unit, a monitoring system and a control unit, the direct current power supply output unit is used for supplying power to the flexible direct current energy storage valve submodule; the control unit is used for being connected with a controller of the flexible direct energy storage valve sub-module, and the control unit is used for sending test parameters to the controller; one end of the monitoring system is used for being connected with the flexible direct energy storage valve sub-module so as to monitor the flexible direct energy storage valve sub-module; and the other end of the monitoring system is in communication connection with the control unit. According to the scheme, the flexible direct energy storage valve sub-module can be tested.

Description

Technical Field

[0001] The present application relates to the field of testing technology, and in particular to a portable testing device and a testing system. Background Art

[0002] The flexible direct energy storage valve submodule is the smallest electrical unit of the flexible direct energy storage valve. The flexible direct energy storage valve submodule stores the current in the battery after converting it from AC to DC or DC-DC. During deep maintenance and replacement of the flexible direct energy storage valve submodule, it is usually necessary to manually go up the tower, disassemble and transport the flexible direct energy storage valve submodule to the bottom of the tower, and use a test device to connect to the mains power supply for charging and testing, resulting in low test efficiency. Utility Model Content

[0003] The present application at least provides a convenient testing device and testing system.

[0004] The present application provides a convenient testing device, which is used to test a flexible direct current energy storage valve submodule. The testing device includes: a DC power supply output unit, a monitoring system and a control unit. The DC power supply output unit is used to supply power to the flexible direct current energy storage valve submodule; the control unit is used to connect to a controller in the flexible direct current energy storage valve submodule, and the control unit is used to send test parameters to the controller; one end of the monitoring system is used to connect to the flexible direct current energy storage valve submodule to monitor the flexible direct current energy storage valve submodule; and the other end of the monitoring system is communicatively connected to the control unit.

[0005] In the above scheme, a DC power output unit is provided in the portable test device provided by the scheme, which can supply power to the flexible direct energy storage valve submodule, and there is no need to carry the flexible direct energy storage valve submodule to the bottom of the tower for testing. Moreover, the control unit is connected to the controller in the flexible direct energy storage valve submodule, which can facilitate the control unit to send test parameters to the flexible direct energy storage valve submodule, so that the flexible direct energy storage valve submodule can work based on the test parameters. In addition, in the scheme, by establishing a connection between the monitoring system and the flexible direct energy storage valve submodule, the monitoring system can monitor the flexible direct energy storage valve submodule and send the monitored data to the control unit so that the control unit can perform corresponding processing based on the received data.

[0006] In some embodiments, the monitoring system includes a data acquisition circuit, a communication circuit and a processor. One end of the data acquisition circuit is connected to the flexible direct energy storage valve submodule, the other end of the data acquisition circuit is connected to one end of the communication circuit, the other end of the communication circuit is connected to the processor, and another end of the processor is connected to the control unit. The processor is used to determine the abnormality of the received detection data and then send the abnormal determination result to the control unit.

[0007] In the above scheme, by setting up a data acquisition circuit, a communication circuit and a processor in the monitoring system, the collected data can be sent to the processor, and the processor can determine whether the received detection data is abnormal and send the result to the control unit, so that the control unit can subsequently perform corresponding processing based on the result.

[0008] In some embodiments, the control unit is a flexible straight energy storage valve simulation control module.

[0009] In the above scheme, the flexible direct energy storage valve simulation control module can simulate the test parameters of the flexible direct energy storage valve sub-module, can realize data transmission and reception with the flexible direct energy storage valve sub-module, and test various functions of the flexible direct energy storage valve sub-module.

[0010] In some embodiments, the testing device further comprises an optical fiber interface connected to another end of the control unit.

[0011] In the above scheme, the other end of the optical fiber interface can be used to cooperate with the optical fiber interface in the flexible direct energy storage valve submodule to establish a communication connection between the control unit and the controller in the flexible direct energy storage valve submodule. By setting up the optical fiber interface, it is convenient for the control unit and the controller in the flexible direct energy storage valve submodule to communicate through the optical fiber connection. After establishing the communication connection between the control unit and the controller, it is convenient for the control unit to read the data monitored by the controller, such as the opening and closing state of each switch in the flexible direct energy storage valve submodule, the switching action of each switch, or the control unit sends a trigger command signal to the controller for the power submodule in the flexible direct energy storage valve submodule, and obtains feedback from the power submodule to perform fault detection on the power submodule, and can also view the version number of the controller and the commands issued by the controller and the status of the flexible direct energy storage valve submodule sent by the controller.

[0012] In some embodiments, the testing device further includes a network switch, one end of which is connected to the control unit.

[0013] In the above scheme, the network switch is also used to connect to the host computer. By setting up a network switch in the test device and connecting the network switch to the host computer, the test device can send the test data or test results of the flexible direct current energy storage valve submodule to the host computer.

[0014] In some embodiments, the testing device also includes a photoelectric converter, one end of which is used to connect to a battery management module, and the other end of the photoelectric converter is connected to a network switch. The battery management module is a battery management module corresponding to the battery in the flexible direct current energy storage valve submodule.

[0015] In the above solution, a photoelectric converter is arranged in the test device so that the photoelectric converter can receive the optical signal sent by the battery management module, and convert the optical signal into an electrical signal and send it to the host computer or the controller via the network switch.

[0016] In some embodiments, the testing device further includes a power strip and a plurality of switching power supplies, wherein an input end of each switching power supply is connected to an output end of the power strip, and output voltages of at least some of the switching power supplies are different.

[0017] In the above solution, the input end of the power strip can be used to connect an external power input device. By arranging multiple switching power supplies in the test device, it is convenient to provide corresponding voltages to devices with different voltage requirements.

[0018] In some embodiments, the control unit and the voltage acquisition unit are connected to different switch power supplies.

[0019] In the above solution, the voltages required by the control unit and the voltage acquisition unit may be different, and different switching power supplies may be connected to facilitate targeted control of the control unit and the voltage acquisition unit.

[0020] The present application provides a testing system, comprising the above-mentioned testing device.

[0021] In some embodiments, the test system further includes a host computer, which is communicatively connected to the test device.

[0022] In the above scheme, by setting up a host computer in the test system, it is convenient for users to use the host computer to send test parameters to the test device, so that the test device tests the corresponding flexible direct energy storage valve sub-module, or it is convenient for users to view the test results of the flexible direct energy storage valve sub-module in the host computer.

[0023] In the above scheme, a DC power output unit is provided in the portable test device provided by the scheme, which can supply power to the flexible direct energy storage valve submodule, and there is no need to carry the flexible direct energy storage valve submodule to the bottom of the tower for testing. Moreover, the control unit is connected to the controller in the flexible direct energy storage valve submodule, which can facilitate the control unit to send test parameters to the flexible direct energy storage valve submodule, so that the flexible direct energy storage valve submodule can work based on the test parameters. In addition, in the scheme, by establishing a connection between the monitoring system and the flexible direct energy storage valve submodule, the monitoring system can monitor the flexible direct energy storage valve submodule and send the monitored data to the control unit so that the control unit can perform corresponding processing based on the received data.

[0024] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings herein are incorporated into the specification and constitute a part of the specification. These drawings illustrate embodiments consistent with the present application and are used together with the specification to illustrate the technical solution of the present application.

[0026] Figure 1 is a schematic diagram of a structure of a testing device provided in some embodiments of the present application;

[0027] Figure 2 It is a schematic diagram of the cooperation between the test device and the flexible direct energy storage valve submodule provided in some embodiments of the present application;

[0028] Figure 3 is a schematic diagram of the structure of a monitoring system provided by some embodiments of the present application;

[0029] Figure 4 It is a schematic diagram of the structure of the test system provided in some embodiments of the present application.

[0030] Description of labels:

[0031] 10-test system, 100-test device, 200-flexible direct energy storage valve submodule, 300-host computer, 400-battery management module, 210-controller, 110-monitoring system, 120-control unit, 130-DC power output unit, 140-switching power supply, 150-power strip, 160-photoelectric converter, 170-network switch, 180-optical fiber interface, 190-power socket, 101-network port, 102-high voltage wiring port, 103-DC power panel, 111-communication circuit, 112-processor, 113-data acquisition circuit. DETAILED DESCRIPTION

[0032] The scheme of the embodiment of the present application is described in detail below in conjunction with the drawings of the specification.

[0033] In the following description, for the purpose of explanation rather than limitation, specific details such as specific subsystem structures, interfaces, and technologies are provided to facilitate a thorough understanding of the present application.

[0034] The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the objects associated before and after are in an "or" relationship. In addition, "many" in this article means two or more than two. In addition, the term "at least one" in this article means any combination of at least two of any one or more of a plurality of, for example, including at least one of A, B, and C, can mean including any one or more elements selected from the set consisting of A, B, and C.

[0035] Considering that the flexible direct current energy storage valve submodule usually needs to be manually climbed to the tower for deep inspection and replacement, the flexible direct current energy storage valve submodule is disassembled and transported to the bottom of the tower, and a test device is used to connect to the mains power supply for charging and testing, resulting in low testing efficiency.

[0036] Therefore, the present solution provides a convenient testing device. By setting a DC power supply output unit in the testing device, the flexible direct current energy storage valve can be powered, and a control unit is also set to send test parameters to the controller in the flexible direct current energy storage valve sub-module, and then the flexible direct current energy storage valve sub-module is monitored through a monitoring system, thereby completing the test of the flexible direct current energy storage valve sub-module on the tower.

[0037] See also Figure 1 and Figure 2 The present application provides a convenient testing device 100, which is used to test the flexible energy storage valve submodule 200 after cooperating with the flexible energy storage valve submodule 200. The testing device 100 includes: a monitoring system 110 and a control unit 120. The control unit 120 is used to connect to the controller 210 of the flexible energy storage valve submodule 200, and the control unit 120 is used to send test parameters to the controller 210. One end of the monitoring system 110 is used to connect to the flexible energy storage valve submodule to monitor the flexible energy storage valve submodule; the control unit 120 is connected to the other end of the monitoring system 110 for communication.

[0038] The flexible direct energy storage valve submodule 200 is the smallest electrical unit of the flexible direct energy storage valve. In some embodiments, the flexible direct energy storage valve submodule 200 may include a converter valve submodule and a battery connected to the converter valve submodule. In some embodiments, the flexible direct energy storage valve submodule may include a DC-DC converter and a battery connected to the DC-DC converter. The flexible direct energy storage valve adopts a modular multi-level topology, which is composed of a number of basic units with the same structure and connected in series. The AC voltage is fitted by controlling the upper and lower bridge arm submodules of the flexible direct energy storage valve. The submodules usually have a variety of structures such as half-bridge topology and full-bridge topology. The flexible direct energy storage valve submodule 200 is composed of components such as a controller 210, a power submodule (such as an IGBT), a DC capacitor, and a bypass switch. The monitoring system 110 may be equipped with a data acquisition unit. In some application scenarios, the monitoring system may be an SMC monitoring system, which is a distributed monitoring subsystem that monitors the following types of inputs: voltage, temperature, the opening and closing state of the switch, the switching action of the switch, or the fault detection results of the power submodule. In other embodiments, the monitoring system 110 may also have a control function or a logic processing function. For example, after the voltage data is collected, the voltage data can be logically processed, such as determining whether the voltage is abnormal, and then the logic processing result is transmitted to the control unit 120. The control unit 120 and the monitoring system 110 can be connected via an optical fiber. The control unit 120 can obtain the voltage test result of the flexible direct energy storage valve submodule 200 according to further logic processing from the monitoring system 110. The controller in the control unit 110 and the flexible direct energy storage valve submodule can be an FPGA chip, or a CPU (Central Processing Unit, Central Processing Unit), etc. Exemplarily, the controller 210 in the control unit 110 and the flexible direct energy storage valve submodule 200 can be an integrated circuit chip with signal processing capability, or a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field-programmable gate array (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The general processor may be a microprocessor or any conventional processor. In addition, the control unit 110 and the controller in the flexible direct energy storage valve submodule may be implemented by an integrated circuit chip. After the control unit 120 sends the test parameters to the controller, the flexible direct energy storage valve submodule 200 can operate according to the test parameters, and the monitoring system 110 monitors the flexible direct energy storage valve submodule.In other embodiments, the flexible direct energy storage valve submodule 200 can also detect the detection data of each circuit in the flexible direct energy storage valve submodule 200 during operation, and can send the detection data to the control unit 120. The control unit 120 can also determine whether the controller 210 is working abnormally by comparing the monitoring data returned by the monitoring system 110 and the data returned by the controller 210. Exemplarily, if the monitoring data of the two are inconsistent or the difference is large, it is determined that the controller 210 may be working abnormally, or if the monitoring data of the two are consistent or the difference is small, it is determined that the controller 210 is working normally.

[0039] In the above scheme, the portable test device 100 provided by the present scheme is provided with a DC power supply output unit 130, which can supply power to the flexible direct energy storage valve submodule 200, and there is no need to carry the flexible direct energy storage valve submodule 200 to the bottom of the tower for testing, and the control unit 120 is connected to the controller 210 in the flexible direct energy storage valve submodule 200, which can facilitate the control unit 120 to send test parameters to the flexible direct energy storage valve submodule 200, so that the flexible direct energy storage valve submodule 200 can work based on the test parameters. The monitoring system 110 is connected in communication with the control unit 120, which can facilitate the monitoring system 120 to send the detection data to the control unit 120, so that the control unit 120 performs corresponding processing based on the received data.

[0040] Please also see Figure 3 In some embodiments, the monitoring system 110 includes a data acquisition circuit 113, a communication circuit 111 and a processor 112. One end of the data acquisition circuit 113 is connected to the flexible direct energy storage valve submodule 200, and the other end of the data acquisition circuit 113 is connected to one end of the communication circuit 111. The other end of the communication circuit 111 is connected to the processor 112. Another end of the processor 112 is connected to the control unit 120. The processor 112 is used to determine the abnormality of the received detection data and send the abnormality determination result to the control unit 120.

[0041] The data acquisition circuit 113 may include multiple sensors (not shown), which can be used to monitor the corresponding data. Such as temperature sensors, humidity sensors, pressure sensors, current and voltage detection modules, etc., which are responsible for real-time acquisition of the status information of the field equipment. In other application scenarios, the data acquisition circuit may include a monitoring module (not shown): directly connected to the controller 210 of the flexible straight energy storage valve 200, which can monitor multiple parameters collected by the controller 210 in real time. This scheme does not improve the specific structure of the communication circuit 111. The common communication circuit 111 may include a modulator (not shown), a demodulator (not shown), etc. or source coding (not shown), channel coding (not shown), modulator (not shown), and demodulator (not shown), channel decoding (not shown), source decoding (not shown) and other components. The specific structure of the communication circuit 111 is not specifically limited here. The processor 112 can be an FPGA chip, or a CPU (Central Processing Unit, central processing unit), etc. Exemplarily, the control unit 110 and the controller in the flexible energy storage valve submodule may be an integrated circuit chip with signal processing capability, or may be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc. In other embodiments, the controller 210 in the flexible energy storage valve submodule 200 may also be an SMC monitoring system to monitor the voltage, temperature, the opening and closing state of the switch, the switching action of the switch, or the fault detection result of the power submodule of the sensor in the flexible energy storage valve submodule. Each sensor is respectively arranged in the circuit that needs to be monitored in the flexible energy storage valve submodule 200. The processor determines whether the monitored detection data is abnormal by comparing the received detection data with the corresponding threshold to determine whether there is an abnormality. The monitoring system 110 and the controller 210 are the same controller 210, so that the interface of the monitoring system 110 is consistent with the interface of the controller 210, which facilitates the establishment of a communication connection between the two. For example, the controller 210 and the monitoring system 110 are both SMC monitoring systems.

[0042] In the above scheme, by setting up a data acquisition circuit 113, a communication circuit 111 and a processor 112 in the monitoring system 110, the collected data can be sent to the processor 112, and the processor 112 can determine whether the received detection data is abnormal and send the result to the control unit 120, so that the control unit 120 can subsequently perform corresponding processing based on the result.

[0043] In some embodiments, the control unit 120 is a flexible energy storage valve simulation control module.

[0044] The flexible direct energy storage valve simulation control module is a simulation main control system. Exemplarily, the flexible direct energy storage valve simulation control module is a simulation VBC (valve base controller, VBC) tooling. The specific structure can be to simulate the main control system of the flexible direct energy storage valve on a chip such as an FPGA chip or a CPU to obtain a flexible direct energy storage valve simulation control module. The flexible direct energy storage valve simulation control module can be used to communicate with the flexible direct energy storage valve sub-module, and at the same time realize the capacitance voltage balance function and circulation control function of the flexible direct energy storage valve sub-module. The simulation main control system can realize data transmission and reception between the flexible direct energy storage valve sub-module 200 and test the various functions of the sub-module.

[0045] In the above scheme, the flexible direct energy storage valve simulation control module can simulate the test parameters of the flexible direct energy storage valve sub-module, can realize data transmission and reception with the flexible direct energy storage valve sub-module, and test various functions of the flexible direct energy storage valve sub-module.

[0046] In some embodiments, the testing device 100 further includes a fiber optic interface 180 , one end of the fiber optic interface 180 is connected to another end of the control unit 120 .

[0047] The number of optical fiber interfaces 180 can be one or more, and the other end of the optical fiber interface 180 is used to cooperate with the optical fiber interface 180 in the flexible direct energy storage valve submodule 200 to establish a communication connection between the control unit 120 and the controller 210 in the flexible direct energy storage valve submodule 200. The optical fiber interface 180 can be connected to the control unit 120 at one end, and the other end of the optical fiber interface 180 can achieve a communication connection between the control unit 120 and the controller 210 in the flexible direct energy storage valve submodule 200 after cooperating with the optical fiber interface 180 in the flexible direct energy storage valve submodule 200 through optical fiber. Different optical fiber interfaces 180 can be used to connect optical fiber interfaces 180 in different flexible direct energy storage valve submodules 200, so that one test device 100 can test multiple flexible direct energy storage valve submodules 200. The optical fiber interface 180 can be set on the housing of the test device 100, and the voltage sampling unit and the control unit 120 are set inside the housing of the test device 100.

[0048] In the above scheme, by setting up the optical fiber interface 180, it is convenient for the control unit 120 and the controller 210 in the flexible direct energy storage valve submodule 200 to communicate through the optical fiber connection. After establishing the communication connection between the control unit 120 and the controller 210, it is convenient for the control unit 120 to read the data monitored by the controller 210, such as the opening and closing status of each switch in the flexible direct energy storage valve submodule 200, the switching action of each switch, or the control unit 120 sends a trigger command signal for the power submodule in the flexible direct energy storage valve submodule 200 to the controller 210, and obtains feedback from the power submodule to perform fault detection on the power submodule, and can also check the version number of the controller 210 and the commands issued by the controller 210 and the status of the flexible direct energy storage valve submodule 200 sent by the controller 210.

[0049] In some embodiments, the testing device 100 further includes a network switch 170 , one end of which is connected to the control unit 120 .

[0050] The network switch 170 (Switch), also called a switching hub, is a network device that works on the second layer of OSI (data link layer, see the definition of "wide area network"), based on MAC (media access control address of the network card) identification, and can complete the function of encapsulating and forwarding data packets. The network switch 170 is also used to connect to the host computer 300. For example, the network switch 170 can be connected to the host computer 300 through optical fiber, and can also establish a communication connection with the host computer 300 through WiFi or mobile network. Exemplarily, a network port 101 can be set on the housing of the test device 100, one end of the network port 101 is connected to the network switch 170, and the network is also used to connect to the host computer 300, so as to establish communication between the host computer 300 and the network switch 170. In some application scenarios, the host computer 300 can provide a display interface or operation buttons, so that the user can use the host computer 300 to view the test results of the flexible direct energy storage valve submodule 200 or send test parameters to the test device 100 through the host computer 300, so that the test device 100 can test the connected flexible direct energy storage valve submodule 200 after receiving the test parameters. The host computer 300 is the control end of the entire test tooling, which is generally a laptop computer of the tester.

[0051] In the above solution, by setting a network switch 170 in the test device 100 and connecting the network switch 170 to the host computer 300 , the test device 100 can send the test data or test results of the flexible direct energy storage valve submodule 200 to the host computer 300 .

[0052] In some embodiments, the testing device 100 further includes a photoelectric converter 160. One end of the photoelectric converter 160 is used to connect to the battery management module 400, and the other end of the photoelectric converter 160 is connected to the network switch 170. The battery management module 400 is a battery management module 400 corresponding to the battery in the flexible direct current energy storage valve submodule 200.

[0053] Each flexible direct energy storage valve submodule 200 may include one or more batteries. After the converter valve submodule in the flexible direct energy storage valve submodule 200 converts the alternating current into direct current, the direct current can be stored in the battery. Or in other embodiments, after the direct current-to-direct current converter in the flexible direct energy storage valve submodule 200 performs direct current-to-direct current conversion, the direct current can be stored in the battery. The photoelectric converter 160 is a device that converts an optical signal into an electrical signal. Its basic function is to convert an optical signal into an electrical signal for processing and transmission in an electronic device. One end of the photoelectric converter 160 is connected to the battery management module 400, and can convert the optical signal sent by the battery management module 400 into an electrical signal, and then send the electrical signal to the host computer 300 via the network switch 170. The battery management module 400 is a BMS module, and the BMS module can be a battery controller. The battery management module 400 and the controller 210 can be connected through an optical fiber so that the battery management module 400 and the controller 210 can communicate.

[0054] In the above scheme, by setting the photoelectric converter 160 in the test device 100, the photoelectric converter 160 can receive the optical signal sent by the battery management module 400, and convert the optical signal into an electrical signal and send it to the host computer 300 or to the controller via the network switch 170.

[0055] In some embodiments, the test device 100 further includes a DC power output unit 130 and a high voltage connection port 102. The output end of the DC power output unit 130 is connected to the high voltage connection port 102, and the high voltage connection port 102 is used to connect to the high voltage line in the flexible DC energy storage valve submodule 200.

[0056] Specifically, the DC power output unit 130 converts 220V AC output to provide a maximum of 1KV DC output to provide a starting voltage for the flexible DC energy storage valve submodule 200. The high-voltage wiring port 102 can be connected to the high-voltage line in the flexible DC energy storage valve submodule 200, so as to supply power to the flexible DC energy storage valve submodule 200 according to the high-voltage line. Optionally, the high-voltage wiring port 102 can be provided on the housing of the test device 100.

[0057] In the above scheme, by setting a DC power supply output unit 130 and a high-voltage wiring port 102 in the testing device 100, the DC power supply output unit 130 can be connected to the flexible direct energy storage valve sub-module 200 and power the flexible direct energy storage valve sub-module 200, so that a starting voltage can be given to the flexible direct energy storage valve sub-module 200, thereby achieving the effect of testing the minimum starting voltage of the flexible direct energy storage valve sub-module 200.

[0058] In some embodiments, the testing device 100 further includes a power strip 150 and a plurality of switching power supplies 140. The input end of each switching power supply 140 is connected to the output end of the power strip 150, and at least some of the switching power supplies 140 have different output voltages.

[0059] The input end of the power strip 150 can be used to connect an external power input device. For example, the input end of the power strip 150 can be connected to the external power input device through the power socket 190 provided on the housing of the test device 100. For example, after the plug of the external power input device is connected to the power socket 190, because the power socket 190 is connected to one end of the power strip 150, the power strip 150 can be connected to the external power input device. In addition, the power strip 150 can have multiple output ports (not shown), and each output port can be connected to a switching power supply 140. The switching power supply 140 is made of electronic components and a small high-frequency transformer. The working principle is that high voltage electricity (mains electricity 220V) is directly converted into high-voltage direct current by a diode, and then converted into a high-frequency low-voltage pulse power supply through a high-frequency switching conversion circuit, and then rectified by a diode, filtered by a capacitor, and finally converted into a smooth low-voltage direct current output. If the voltage required by the device to be powered by the switching power supply 140 is different, then the output voltage of the switching power supply 140 can be set to be different.

[0060] In the above solution, by providing a plurality of switch power supplies 140 in the testing device 100, it is convenient to provide corresponding voltages to devices with different voltage requirements.

[0061] In some embodiments, the control unit 120 and the monitoring system 110 are connected to different switching power supplies 140 .

[0062] For example, the required voltage of the control unit 120 is 15V, and the required voltage of the monitoring system 110 is 12V, then the switching power supply 140 connected to the control unit 120 is different from the switching power supply 140 connected to the monitoring system 110, and the output voltage of the switching power supply 140 connected to the control unit 120 is 15V, and the switching power supply 140 connected to the monitoring system 110 is 12V. Optionally, the network switch 170 can be directly connected to the power strip 150, so that the power strip 150 provides an AC voltage of 220V for the network switch 170. Optionally, the photoelectric converter 160 and the control unit 120 can be connected to the same switching power supply 140.

[0063] In the above solution, the control unit 120 and the monitoring system 110 may require different voltages and may be connected to different switching power supplies 140 to facilitate targeted control of the control unit 120 and the monitoring system 110 .

[0064] In some embodiments, the test device 100 includes a housing (not shown), in which a monitoring system 110, a control unit 120, a DC power output unit 130, a switching power supply 140, a power strip 150, an optical-to-electrical converter 160, and a network switch 170 are arranged, and an optical fiber interface 180, a power socket 190, a network port 101, a high-voltage connection port 102, and a DC power panel 103 are arranged on the housing. The DC power panel 103 can display the DC power output of the test device.

[0065] The portable test device 100 provided in this solution is a centralized test device 100: the test device 100 has the characteristics of small size and concentrated functions. The control unit 120 in the test device 100 can be considered as a simulated main control system, the DC power supply output unit 130 can output DC voltage, the monitoring system 110 can monitor the voltage of the power submodule of the flexible direct energy storage valve submodule 200, and the photoelectric converter 160 can monitor the battery status and other functions. The control unit 120 simulates the main control to send a control command to the submodule, and the DC power supply output unit 130 outputs a DC voltage to realize the operation of the submodule. The test results test the submodule function by sampling the submodule voltage and monitoring the battery status. The control unit 120 can test the fault detection function of the submodule by fault insertion. Among them, the control unit 120 can be a simulated VBC tooling to realize data transmission and reception with the flexible direct energy storage valve submodule 200 and test various functions of the submodule. The DC power supply output unit 130 transfers 220V AC output and provides a maximum of 1KV DC output to provide the starting voltage of the flexible direct energy storage valve submodule 200. The monitoring system 110 can be an SMC monitoring system, and the voltage sampling of the flexible direct energy storage valve submodule 200 is implemented by the SMC monitoring system (SMC board), wherein the internal control board of the flexible direct energy storage valve submodule 200 can also be an SMC board, which can realize the collection of DC voltage. That is, the voltage is collected through the SMC board, which is the same board inside the flexible direct energy storage valve submodule 200, and can realize the same voltage collection function, and test the voltage of the flexible direct energy storage valve submodule 200.

[0066] The state of the battery connected to the flexible direct current energy storage valve submodule 200 is directly monitored by the BMC board (battery management module 400) corresponding to the battery. The BMC is a battery control board. The photoelectric conversion module in the test device 100 converts the optical signal sent by the BMC into an electrical signal, which is sent to the host computer 300 for monitoring via the network switch 170. The host computer 300 is the control end of the entire test tooling, which is generally a laptop computer of the tester.

[0067] The test device 100 provided in this solution uses a centralized design to enable a single test tool to complete multifunctional testing and achieve a closed test loop.

[0068] The switch power supply 140 in the test device 100 supplies power to the control unit 120, the photoelectric converter 160 and the monitoring system 110 in the test device 100. The photoelectric converter 160 in the flexible direct current energy storage valve submodule 200 communicates with the BMC corresponding to the battery through optical fiber communication, and the control unit 120 in the test device 100 communicates with the SMC through optical fiber communication. The control unit 120 and the photoelectric converter 160 communicate with the host computer 300 through the network switch 170 respectively.

[0069] In some embodiments, the control unit 120 simulates the functions of the VBC test tooling and the valve control main control device, which can read the submodule status and control the submodule. The functions are as follows:

[0070] 1. Switch state detection. The switch in the submodule can be read. Specifically, the control unit 120 sends a state detection instruction to the controller 210. After receiving the state detection instruction, the controller 210 detects the state of each switch and sends the detected state to the VBC.

[0071] 2. Switch operation detection: The operation of the switches inside the submodule can be detected. Specifically, the control unit 120 sends a switch operation detection instruction to the controller 210. After receiving the switch operation detection instruction, the controller 210 detects the switch operation of each switch and sends the detected switch operation to the control unit 120.

[0072] 3. IGBT (power submodule) triggering and monitoring function. The control unit 120 sends an IGBT trigger command signal, and the controller 210 detects the action of the drive board in the flexible direct energy storage valve submodule 200 and feeds back the status; it can detect faults in the power submodule.

[0073] 4. Communication function test: The control unit 120 sends a viewing command to the controller 210, and can receive information returned by the controller 210 to view the status information of the controller 210 (central control board), including: the version number of the central control board, all commands issued by the central control board, and all status uploaded by the central control board.

[0074] Optionally, the control unit 120 can customize the tooling control and read data according to the configuration of the device under test for the test of the above functions, so as to implement the test of various sub-module models.

[0075] The DC power output unit 130 applies voltage to the flexible DC energy storage valve submodule 200 to provide a starting voltage to the flexible DC energy storage valve submodule 200, and tests the minimum starting voltage of the flexible DC energy storage valve submodule 200. The DC power output unit 130 can provide a voltage of 1 kV at most to start the submodule.

[0076] Please also see Figure 4 , the present application provides a testing system 10 , including the above-mentioned testing device 100 .

[0077] The test system 10 may include a test device 100 and other devices connected to the test device 100 . For example, the test system 10 may include a test device 100 and an external power input device for supplying power to the test device 100 .

[0078] In the above scheme, the portable test device 100 provided by the present scheme is provided with a DC power supply output unit 130, which can supply power to the flexible direct energy storage valve submodule 200, and there is no need to carry the flexible direct energy storage valve submodule 200 to the bottom of the tower for testing, and the control unit 120 is connected to the controller 210 in the flexible direct energy storage valve submodule 200, which can facilitate the control unit 120 to send test parameters to the flexible direct energy storage valve submodule 200, so that the flexible direct energy storage valve submodule 200 can work based on the test parameters. The monitoring system 110 is connected in communication with the control unit 120, which can facilitate the monitoring system 120 to send the detection data to the control unit 120, so that the control unit 120 performs corresponding processing based on the received data.

[0079] In some embodiments, the test system 10 further includes a host computer 300 , which is communicatively connected to the test device 100 .

[0080] In some application scenarios, the host computer 300 can provide a display interface or operation buttons, so that the user can use the host computer 300 to view the test results of the flexible direct energy storage valve submodule 200 or send test parameters to the test device 100 through the host computer 300, so that the test device 100 can test the connected flexible direct energy storage valve submodule 200 after receiving the test parameters. The host computer 300 is the control end of the entire test tooling, which is generally a laptop computer of the tester.

[0081] In the above scheme, by setting up a host computer 300 in the test system 10, it is convenient for the user to use the host computer 300 to send test parameters to the test device 100, so that the test device 100 tests the corresponding flexible direct energy storage valve sub-module 200, or it is convenient for the user to view the test results of the flexible direct energy storage valve sub-module 200 in the host computer 300.

[0082] In some embodiments, the test system 10 further includes a flexible energy storage valve submodule 200 , and the flexible energy storage valve submodule 200 is connected to the test device 100 so that the test device 100 can test the flexible energy storage valve submodule 200 .

[0083] In the above scheme, the portable test device 100 provided by the present scheme is provided with a DC power supply output unit 130, which can supply power to the flexible direct energy storage valve submodule 200, and there is no need to carry the flexible direct energy storage valve submodule 200 to the bottom of the tower for testing, and the control unit 120 is connected to the controller 210 in the flexible direct energy storage valve submodule 200, which can facilitate the control unit 120 to send test parameters to the flexible direct energy storage valve submodule 200, so that the flexible direct energy storage valve submodule 200 can work based on the test parameters. The monitoring system 110 is connected in communication with the control unit 120, which can facilitate the monitoring system 120 to send the detection data to the control unit 120, so that the control unit 120 performs corresponding processing based on the received data.

[0084] The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other, and for the sake of brevity, they will not be repeated herein.

Claims

1. A portable testing device, characterized in that: The testing device is used to test the flexible straight energy storage valve submodule, and the testing device includes: A direct current power supply output unit, the direct current power supply output unit is used to supply power to the flexible direct current energy storage valve submodule; A control unit, used to connect to the controller of the flexible direct energy storage valve submodule, and the control unit is used to send test parameters to the controller; A monitoring system, one end of which is used to connect to the flexible direct current energy storage valve submodule to monitor the flexible direct current energy storage valve submodule; the other end of the monitoring system is communicatively connected to the control unit.

2. The testing device according to claim 1, characterized in that: The monitoring system includes a data acquisition circuit, a communication circuit and a processor. One end of the data acquisition circuit is connected to the flexible direct energy storage valve submodule, the other end of the data acquisition circuit is connected to one end of the communication circuit, the other end of the communication circuit is connected to the processor, and another end of the processor is connected to the control unit. The processor is used to determine the abnormality of the received detection data and send the abnormality determination result to the control unit.

3. The testing device according to claim 1, characterized in that: The control unit is a flexible straight energy storage valve simulation control module.

4. The testing device according to claim 1, characterized in that: The testing device further comprises an optical fiber interface, one end of which is connected to another end of the control unit.

5. The testing device according to any one of claims 1 to 4, characterized in that: The testing device further comprises a network switch, one end of which is connected to the control unit.

6. The testing device according to claim 5, characterized in that: The testing device also includes a photoelectric converter, one end of which is used to connect to a battery management module, and the other end of which is connected to the network switch. The battery management module is a battery management module corresponding to the battery in the flexible direct current energy storage valve submodule.

7. The testing device according to any one of claims 1 to 4, characterized in that: The testing device further comprises a power strip and a plurality of switching power supplies, wherein an input end of each of the switching power supplies is connected to an output end of the power strip, and output voltages of at least some of the switching power supplies are different.

8. The testing device according to claim 7, characterized in that: The control unit and the monitoring system are connected to switch power supplies with different output voltages.

9. A testing system, characterized in that: Comprising a testing device as claimed in any one of claims 1 to 8.

10. The test system according to claim 9, characterized in that: The test system further comprises a host computer, and the host computer is communicatively connected with the test device.

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